at least two americans were shot and killed during robberies orchid nappings in haiti this year. the u.s. is also warning travelers about the spread of cholera. >>> a public memorial being planned for a bay area environmental leader who died suddenly this week while on vacation. 39-year-old rebecca tarbutton served as the executive director of the san francisco bay's rain action network. she recently helped put together a landmark agreement with disney, which changes the way disney buys and uses paper. >> her incredible smarts and talent and her way of negotiating with, you know, these big banks and then the next day being out in the streets with protesters. >> authorities say tarbutten drowned wednesday after going for a swim in mexico. she just got married in july. >>> berkeley fire department has a new leader this morning. chief debra priers retired after 27 years with the department. she broke numerous barriers. the 51-year-old was berkeley's first female firefighter, its first female chief, and the second black female fire chief in the country. the newlywed wants to spend mo